Theory of the Earth, or, An Investigation of the Laws Observable in the Composition, Dissolution, and Restoration of Land upon the Globe (based on the paper read in 1785 and published in Transactions of the Royal Society of Edinburgh in 1788), by James Hutton

Theory of the Earth, With Proofs and Illustrations (posthumously edited partial text of planned third volume, based on Hutton's notes, with index to two previously published volumes; London: Geological Society, 1899), by James Hutton, ed. by Archibald Geikie